Auxiliary grease gun



July 6 1926.

L. G. HILL AUXILIARY VGREASE GUN Filed Feb. 27

INVENTOR .Lou/5 H/LL ATTORNEY Patented July 6, 1926.

LOUIS G. HILL, F MORENCI, MICHIGAN.

AUXlLIARY GREASE GUN.

Application led February 27, 1925. Serial No.` 12,177.

The-primary object of my' invention is to provide an auxiliary grease gun on the end Vcfa hose leading from a major grease gun for the filling of grease cups, or for use in injecting grease into containers that have small openings. j

\It isa further object of my invention to provide an auxiliary gun that will eject grease under pressure in order to pack the same into openings of small capacity.

It-is another object of my invention to provide ari auxiliary grease gun of simple and'inexpensive construction that can be easily and quickly'attached to, or removed i5 from, the hose of a major grease gun.

With the above and other objects in vievv,

. my invention consists Ain the arrangement, combination and construction of the various parts of my improved device, as described in the specificatiom'claimed in my claims and shown in the accompanying drawings, in which Fig. 1 is a front elevation of my improved device shown as attached to a major grease l5 gun, themajor gun being partly broken away and partly shown in Sectio.. 1

Fig. 2 is a front elevation of my improved device shown in section.

-Y I have shown part of a grease gun 10 having the base 11,'the outlet l2, the plunger 13 and the' hose 14, one end of which i's secured to the outlet 12. g

The grease container t15 with the head 16 is placed between, the plunger 13 and the base l1, so that pressure can be applied on the head 16 by the plunger 13, to force the grease 17 through the outlet l2 into the hose 14.

.The specific construction of such a 'grease 40, gun'will be 4found in'my copending application, filed November 16th, 1921, Serial No. 515.449. f

My improved gun 18 that has the inlet 19 is secured to the free end of the hose 14 45' by fitting the inlet 19 inside the hose 14 and placing clamps 20, or other securing means,

around the hose, so that the same willenv gage with the notches 22 on the inlet 19.

` In the construction `of'my improved dej fvce lI provide a cylinder 21, into which`is` screw threaded, asat 23, the adapter 24, until the shoulder 25 thereof rests against the-upper edge of the cylinder 21.

A plunger rod 26 with the head 27 thereon 'l 55 is fitted for reciprocation in the adaptergt,

The hollow nut 28 holds packing 29 around the rod 26, and is threaded nto the head of the adapter 24.

The lower end of the cylinder 21 is exteriorly tapered as, at 30, and a shoulder 31 isV formed at about the same point, on the inside of the cylinder. A bushing 32 that has the beveled edge 33, is placed on the shoulder 31.

The flanged pipe coupling 34 that has one end 35 flanged and beveled, is fitted into the tapered end 30, so that the end 35 extends past the shoulder 31 and the flange 36 rests 'agaixist the lower endV of the cylinder 2l. The lunger rod 26 has the rounded end 37 that 1s adapted to fit into the end 35 of the coupling 34 on the downward stroke of the rod 26. A plunger 38 with the beveled end 39, which is adapted to fit into the beveled` edge 33 of the bushing 32, is secured on the rod 26 by the pin 40 so that the same Will aid in forcing the grease to the outlet and also act as a stop on the up stroke of the y plunger rod 26:`

A tapered cap 41 with the spring 42 inserted therein isplaced on the other end '43 of the-coupling 34 so that the heavy grease will only be ejected When pressure is placed on the same.

In the practical use of'my improved gun, grease is forced into the inlet 19, then into the cylinder 21 from the hose 14 under pressure from the plunger 13 of the major gun, Vand is constantly held underV pressure by the said plunger 13. Theplunger rod 26 then can be reciprocated up and down in the adapter 24 by meansof the head 27. Thus, on each down stroke the grease that is inthe cylinder 2 1, or at least a portion thereof, is forced through the pipe coupling 34 and 1s ejected from the cap 41.

The cap 41 is adapted to fit most lubricating nipples such as are used on auto.

mobiles (for which my invention is best suited) but other fittings may be substituted, adapted to meet `the conditions in various systems, it being noted that the cap 41 is easily removable.

4When it is desired to utilize the major grease gun for lling transmissions, rear axles and the like, where pressure introduction of the lubricant is not required, the coupling 34 is unscrewed and the tapered end 30 of the cylinder 21 used as the ordinary @ad et the hose 14. The plunger 38 with` the beveled end 39 that can be `fitted into the bushing 32, acts as a shutoff valve to stop the oiv of grease `mvhen the gun is put to this use. e

Thus, it will be seen that I have provided a liigh pressure gun which may be used in conjunction with an ordinary grease gun and which accordingly never needsto be o ened and refilled with lubricant. Additional lubricant may at all times be had by downward movement of the plunger 13 in the main lubricant container 15.

It is obvious that variouschanges may be :made in the arrangement, combination and construction of the various parts of my irnproved device without departing from the spirit of my invention, and it is my intention to cover by my claims such changes as may be reasonably included within the scope thereof.

4What I claim is: .h

1. An auxiliary grease 'gun consisting of a cylinder, an inlet and an outlet in said cylinder, an adapter secured to one end thereof a plunger rod fitted for reciproction in said adapter, a pipe coupling fitted into the other end of said cylinder and adapted to receive one end of said rod on the downward stroke and a plunger on said rod to aid in ejecting grease from said outlet and to act as a stop for said plunger rod.

2. An auxiliary grease gun consisting of a cylinder, having a tapered en'd, a plunger roda pipe coupling fitted into said tapered end and adapted to receive part of said rod,

and a tapered cap having a spring inserted therein, to prevent grease being e]ected exnopening `orthe passage'iof grease,

vplunger and a tapered cap havin sure, and grease may'pass through said recciver under ordinary pressure' frein the container when said fitting is removed, said plunger and said beveled lbushinr being v adapted'to act asa stop valve whenxbrought together.

4, In combination, a grease container, a hose, means for forcing' grease from said 'container under pressure into said hose and an auxiliary grease gun secured to one end of said hose consisting of a'cylinder having a tapered end adapted to receive'greaseI from said hose, a plunger rod fitted for reciprocation in said cylinder, a plunger on said` .Y

Vrod, a pipe coupling fitted into said tapered end and adapted to receive part ofV said rod, means for receiving a portion-.of said g a spring inserted therein to aid in preventing grease being ejected except under pressure.

Louis e. HILL. 

